245475385 has 4 divisors (see below), whose sum is σ = 294570468. Its totient is φ = 196380304.

The previous prime is 245475371. The next prime is 245475397. The reversal of 245475385 is 583574542.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38489616 + 206985769 = 6204^2 + 14387^2 .

It is a cyclic number.

It is not a de Polignac number, because 245475385 - 2¹¹ = 245473337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24547534 + ... + 24547543.

It is an arithmetic number, because the mean of its divisors is an integer number (73642617).

Almost surely, 2^245475385 is an apocalyptic number.

It is an amenable number.

245475385 is a deficient number, since it is larger than the sum of its proper divisors (49095083).

245475385 is an equidigital number, since it uses as much as digits as its factorization.

245475385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49095082.

The product of its digits is 672000, while the sum is 43.

The square root of 245475385 is about 15667.6541000879. The cubic root of 245475385 is about 626.1369257856.

The spelling of 245475385 in words is "two hundred forty-five million, four hundred seventy-five thousand, three hundred eighty-five".